Installing curtains, blinds, tinting windows do not really provide any relief from the hot sun.
When the sun's rays hit the windows and also the walls,
thermal radiation via the glass panels and walls enters the room turning it into a sauna and at the same time shortening the life span of your window dressing.
The most effective method is to install awnings or sun-breakers to block off the sun's rays and hence cuts out the direct thermal radiation.
You might consider installing some sun-breakers like those shown here which are quite effective.
Another method is to plant trees to provide shade at the window areas
View attachment 12974
View attachment 12975